wf_total_menu.aspx.cs

某大型国企试用的网上订餐管理系统完整源代码

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace WebApplication1 //HN_TOTAl_MEMU // HNtest1_main1
{
	/// <summary>
	/// WFapp 的摘要说明。
	/// </summary>
	public class WF_TOTAL_MEMU : System.Web.UI.Page
	{
		protected System.Data.DataView dataView1;
		protected System.Data.Odbc.OdbcConnection odbcConnection1;
		protected System.Data.Odbc.OdbcCommand odbcSelectCommand1;
		internal System.Data.Odbc.OdbcCommand odbcInsertCommand1;
		protected System.Data.Odbc.OdbcCommand odbcUpdateCommand1;
		protected System.Data.Odbc.OdbcCommand odbcDeleteCommand1;
		protected System.Data.Odbc.OdbcDataAdapter odbcDataAdapter1;
		protected System.Web.UI.WebControls.TextBox TextBox4;
		protected System.Web.UI.WebControls.TextBox TextBox2;
		protected System.Web.UI.WebControls.DataGrid DataGrid1;
		protected System.Data.DataSet dataSet1;
		protected System.Web.UI.WebControls.DropDownList DropDownList2;
		protected System.Data.Odbc.OdbcCommand odbcCommand1;
		protected System.Web.UI.WebControls.TextBox TextBox3;
		protected System.Web.UI.WebControls.RangeValidator valPrice;
		protected System.Web.UI.WebControls.TextBox TextBox5;
		protected System.Web.UI.WebControls.Button Button5;
		protected System.Web.UI.WebControls.Button Button2;
		protected System.Web.UI.WebControls.Button Button7;
      //  protected System.Data.DataSet dataSet1;		

		private string selectstr;
		private string Insertstr;
		private string strUser ;   
		private string strUserName;
		private string strDept;
		protected System.Web.UI.WebControls.TextBox TextBox1;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label3;
		protected System.Web.UI.WebControls.Label Label10;
		protected System.Web.UI.WebControls.Label lblMeage;
		protected System.Web.UI.WebControls.Button btnDelete;
		protected System.Web.UI.WebControls.Label Label2;
		protected System.Web.UI.WebControls.Label Label4;
		protected System.Web.UI.WebControls.Label Label5;
		protected System.Web.UI.WebControls.Label Label6;
		protected System.Web.UI.WebControls.Label Label7;
		protected System.Web.UI.WebControls.Label Label8;
		protected System.Web.UI.WebControls.DropDownList DropDownList1;    
		private string strDeptName;

		private void Page_Load(object sender, System.EventArgs e)
		{
			// 在此处放置用户代码以初始化页面
			strUser = (string)Session["strUser"];
			strUserName = (string)Session["strUserName"];
			strDept = (string)Session["strDept"];
			strDeptName = (string)Session["strDeptName"];

			if (!IsPostBack)
			{
				if (!Global.CheckUserValidation((string)Session["strRole"], Global.MENU_TOTALMENU))
				{
					Response.Redirect("err_session.htm", true);
				}

				DataGrid1.CurrentPageIndex=0;
				DataGrid1.PageSize = Convert.ToInt32 (TextBox1.Text );
				select();
			}
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.dataView1 = new System.Data.DataView();
			this.odbcConnection1 = new System.Data.Odbc.OdbcConnection();
			this.odbcSelectCommand1 = new System.Data.Odbc.OdbcCommand();
			this.odbcInsertCommand1 = new System.Data.Odbc.OdbcCommand();
			this.odbcUpdateCommand1 = new System.Data.Odbc.OdbcCommand();
			this.odbcDeleteCommand1 = new System.Data.Odbc.OdbcCommand();
			this.odbcDataAdapter1 = new System.Data.Odbc.OdbcDataAdapter();
			this.dataSet1 = new System.Data.DataSet();
			this.odbcCommand1 = new System.Data.Odbc.OdbcCommand();
			((System.ComponentModel.ISupportInitialize)(this.dataView1)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.dataSet1)).BeginInit();
			this.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged_1);
			this.DataGrid1.SelectedIndexChanged += new System.EventHandler(this.DataGrid1_SelectedIndexChanged);
			this.Button5.Click += new System.EventHandler(this.Button5_Click);
			this.Button2.Click += new System.EventHandler(this.Button2_Click);
			this.btnDelete.Click += new System.EventHandler(this.btnDelete_Click);
			this.Button7.Click += new System.EventHandler(this.Button7_Click);
			// 
			// odbcDataAdapter1
			// 
			this.odbcDataAdapter1.DeleteCommand = this.odbcDeleteCommand1;
			this.odbcDataAdapter1.InsertCommand = this.odbcInsertCommand1;
			this.odbcDataAdapter1.SelectCommand = this.odbcSelectCommand1;
			this.odbcDataAdapter1.UpdateCommand = this.odbcUpdateCommand1;
			// 
			// dataSet1
			// 
			this.dataSet1.DataSetName = "NewDataSet";
			this.dataSet1.Locale = new System.Globalization.CultureInfo("zh-CN");
			this.Load += new System.EventHandler(this.Page_Load);
			((System.ComponentModel.ISupportInitialize)(this.dataView1)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.dataSet1)).EndInit();

		}
		#endregion

		private void connectionDB()
		{
			Global.OpenConnection(ref odbcConnection1);
		}	

		private void closeDB()
		{
			odbcConnection1.Close();	
		}	

		private void select()
		{
			//connectionDB();
			DataGrid1.CurrentPageIndex=0;
			DataGrid1.PageSize = Convert.ToInt32 (TextBox1.Text );
         selectdata();
			PageIndexNbr();
		}

		private void selectdata()
		{
			connectionDB();
		//	selectstr="select food_id as '菜式编号',Style as '类型',name as '菜名',Price  as '价格',Description  as '描述',Image  as '电子图片',Effect  as '是否有效' from  T_total_menu order by food_id desc";			
			selectstr="select food_id ,Style ,name ,Price ,Description ,Image ,Effect   from  T_total_menu order by food_id desc";			
	
			odbcDataAdapter1.SelectCommand.CommandText = selectstr;
			odbcDataAdapter1.SelectCommand.Connection = odbcConnection1;
			odbcDataAdapter1.Fill ( dataSet1 , "T_total_menu" ) ;
			DataView dataView1 = dataSet1.Tables [ "T_total_menu" ].DefaultView ;
			DataGrid1.DataSource = dataView1 ;
			DataGrid1.DataBind() ;
			//odbcConnection1.Close();
			closeDB();
			DataGrid1.HeaderStyle.Height=30;
		}	

		private void PageIndexNbr()
		{
			Label1.Text = "第 " + (DataGrid1.CurrentPageIndex + 1).ToString() + " 页／共 " + DataGrid1.PageCount.ToString() + " 页"; 
		}
		private void DataGrid1_PageIndexChanged_1(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
		{
			 DataGrid1.CurrentPageIndex=e.NewPageIndex;
		 	 selectdata();
			 PageIndexNbr();
		}

		private void Button5_Click(object sender, System.EventArgs e)
		{
			lblMeage.Text = "";
			if ((!valPrice.IsValid)||(TextBox3.Text==""))
			{
				Page.RegisterStartupScript("alert", @"<script language=""javascript"">window.alert(""错误：价格格式错误！必须为整数！"")</script>");
				return;
			}
			
			string str1= DropDownList1.SelectedItem.Value;
		    str1="'"+str1+"','"+TextBox2.Text+"',"+TextBox3.Text+",'"+TextBox4.Text+"','"+TextBox5.Text+"',"+DropDownList2.SelectedItem.Value;
    	    Insertstr="INSERT INTO T_total_menu(`Style` ,`name` ,`Price`,`Description`,`Image` ,`Effect`) VALUES ( "+str1+")";
			//TextBox6.Text=Insertstr;
		    insertdata();
			DataGrid1.SelectedIndex = -1;
			//Button1_Click(sender, e);
			Global.WriteLog(ref odbcConnection1, strUser,Global.MENU_TOTALMENU,Global.ACTION_ADD,Insertstr);
			select();

		}
		private void insertdata()
		{
			int i;
			connectionDB();
			odbcInsertCommand1.CommandText = Insertstr;
			odbcInsertCommand1.Connection = odbcConnection1;
			i = odbcInsertCommand1.ExecuteNonQuery ();
			if (i != 1)
			{
				Page.RegisterStartupScript("alert", @"<script language=""javascript"">window.alert(""错误：增加数据错误！"")</script>");

			//	lblMeage.Text = "发生错误。增加数据错误！";
			}
			closeDB();
		}
		private void Button7_Click(object sender, System.EventArgs e)
		{
			select();
			DropDownList1.SelectedIndex=0;
			TextBox2.Text="";
			TextBox3.Text="";
			TextBox4.Text="";
			TextBox5.Text="";
			DropDownList2.SelectedIndex=1;
			lblMeage.Text = "";
			Insertstr="";
		}

		//Modify
		private void Button2_Click(object sender, System.EventArgs e)
		{
			string str1= DropDownList1.SelectedItem.Value;
			string strUpdate;
			int iUpdateRowCount;

			lblMeage.Text = "";
			if ((!valPrice.IsValid)||(TextBox3.Text==""))
			{
				Page.RegisterStartupScript("alert", @"<script language=""javascript"">window.alert(""错误：价格格式错误！必须为整数！"")</script>");
				return;
			}

			strUpdate = "UPDATE T_total_menu set " +
						"style = '" + DropDownList1.SelectedItem.Value + "', " +
						"name = '" + TextBox2.Text + "', " +
						"price = " + TextBox3.Text + ", " +
						"Description = '" + TextBox4.Text + "'," +
						"Image = '" + TextBox5.Text + "'," +
						"Effect = '" + DropDownList2.SelectedItem.Value + "'" + 
						"where food_id = ";
			
			if (DataGrid1.SelectedIndex < 0) //unselected
			{
				Page.RegisterStartupScript("alert", @"<script language=""javascript"">window.alert(""错误：未选择记录！请先选择记录，以对其进行修改！"")</script>");

			//	lblMeage.Text = "未选择一条记录！请先选择记录，以对其进行修改。";
				return;
			}
			else
			{
				strUpdate += DataGrid1.SelectedItem .Cells [1].Text;

			}

			connectionDB();
			odbcCommand1.CommandText = strUpdate;
			odbcCommand1.Connection = odbcConnection1;
			iUpdateRowCount = odbcCommand1.ExecuteNonQuery ();
			if (iUpdateRowCount != 1)
			{
				Page.RegisterStartupScript("alert", @"<script language=""javascript"">window.alert(""错误：未能更改数据！"")</script>");
				return;
			}
			else
			{
				DataGrid1.SelectedIndex = -1;
				Global.WriteLog(ref odbcConnection1, strUser,Global.MENU_TOTALMENU,Global.ACTION_UPDATE,strUpdate);
				select();
			}
            closeDB();
		}

		private void DataGrid1_SelectedIndexChanged(object sender, System.EventArgs e)
		{
			DropDownList1.SelectedValue = ((DropDownList)DataGrid1.SelectedItem.Cells[2].Controls[1]).SelectedValue ; //style
			TextBox2.Text = DataGrid1.SelectedItem .Cells [3].Text ;  //name
			TextBox3.Text = DataGrid1.SelectedItem .Cells [4].Text ;  //price
			TextBox4.Text = DataGrid1.SelectedItem .Cells [5].Text ;  //desc
			TextBox5.Text = DataGrid1.SelectedItem .Cells [6].Text ;  //img
		//	DropDownList1.SelectedValue = DataGrid1.SelectedItem .Cells [2].Text; //style
		//	DropDownList2.SelectedValue = DataGrid1.SelectedItem .Cells [7].Text; //effect
			DropDownList2.SelectedValue =((DropDownList) DataGrid1.SelectedItem.Cells[7].Controls[1]).SelectedValue; //effect


		}

		private void Button1_Click(object sender, System.EventArgs e)
		{
		
		}

		private void btnDelete_Click(object sender, System.EventArgs e)
		{
			string strUpdate;
			int iUpdateRowCount;

			lblMeage.Text = "";
			if (DataGrid1.SelectedIndex < 0) //unselected
			{
				Page.RegisterStartupScript("alert", @"<script language=""javascript"">window.alert(""错误：未选择一条记录！请先选择记录，以对其进行删除！"")</script>");

				//	lblMeage.Text = "未选择一条记录！请先选择记录，以对其进行修改。";
				return;
			}
		
			strUpdate = "DELETE FROM T_total_menu where food_id = ";
			strUpdate += DataGrid1.SelectedItem.Cells[1].Text;
			//lblMeage.Text = strUpdate;
			
			connectionDB();
			odbcCommand1.CommandText = strUpdate;
			odbcCommand1.Connection = odbcConnection1;
			iUpdateRowCount = odbcCommand1.ExecuteNonQuery ();
			closeDB();
			if (iUpdateRowCount != 1)
			{
				Page.RegisterStartupScript("alert", @"<script language=""javascript"">window.alert(""错误：未能删除数据！"")</script>");
				return;
			}
			else
			{
				DataGrid1.SelectedIndex = -1;
				Global.WriteLog(ref odbcConnection1, strUser,Global.MENU_TOTALMENU,Global.ACTION_UPDATE,strUpdate);
				select();
			}
	
		}
	}
}